1. plural of cavalier; knights or horsemen, especially those who served as mounted soldiers
Usage: historical
2. supporters of King Charles I during the English Civil War (1640s)
Usage: historical; capitalized when referring to the specific political faction
3. people who act in a casual or dismissive manner toward serious matters

Examples

• The cavaliers charged across the battlefield on their horses.
• During the English Civil War, the Cavaliers fought against Parliament.
• The medieval cavaliers were known for their code of chivalry.
• He criticized the cavaliers who ignored the safety warnings.
• The Cavaliers supported the monarchy during the conflict.
• These cavaliers showed little concern for the consequences.
• The king’s cavaliers were loyal to the crown.